is this the issue that you faced with latest llvm?

[Jorn Vernee]

Updated webrev: 
http://cr.openjdk.java.net/~jvernee/panama/webrevs/llvmconf/webrev.01/

Cheers,
Jorn

Jorn Vernee schreef op 2019-05-03 16:45:
> Ah, sorry. This was left from when I was testing with allowing
> multiple different version, e.g. `grep -P "^(10|9|8)"` or similar. The
> default grep regex didn't seem to support that syntax, so I went with
> perl regex, and didn't realize this wouldn't work everywhere.
> 
> The -P option can just be removed for the current implementation.
> Maybe if we want to support multiple different version we will have to
> look into that again.
> 
> Jorn
> 
> Maurizio Cimadamore schreef op 2019-05-03 16:41:
>> On 03/05/2019 15:38, Maurizio Cimadamore wrote:
>>> seems like an issue with grep?
>> 
>> Yeah
>> 
>> -P, --perl-regexp
>>               Interpret the pattern as a  Perl-compatible regular  
>> expression
>>               (PCRE).   This  is  highly  experimental and grep -P may 
>> warn of
>>               unimplemented features.
>> 
>> Why did you go for Perl-style?
>> 
>> Maurizio